The natural disappearance of plants and animals has occurred for millions of years but today the risk of extinction hangs over thousands of species. Due to human population increases and our need for food, fuel, shelter and the earths precious natural resources, the erosion of habitats threatens the survival of creatures as diverse as the Black rhino and Horseshoe bat. Written by a team of expert contributors this authoritative guide provides insight into the range and reason of the world's theatened plant and animal species. Colour photographs maps 272pp 2000